<template>
  <div>
    <p class="title">东方风电数据情报系统</p>
    <section class="user">
      <div class="user_options-container">
        <div class="user_options-text">
          <div class="user_options-unregistered">
            <h2 class="user_unregistered-title">还没有账号?</h2>
            <p class="user_unregistered-text">
              点击注册按钮，切换到注册页面进行注册.
            </p>
            <button class="user_unregistered-signup" id="signup-button">
              注册
            </button>
          </div>

          <div class="user_options-registered">
            <h2 class="user_registered-title">已经拥有账号?</h2>
            <p class="user_registered-text">
              点击登录按钮，切换到登录页面进行登录.
            </p>
            <button class="user_registered-login" id="login-button">
              登录
            </button>
          </div>
        </div>

        <div class="user_options-forms" id="user_options-forms">
          <div class="user_forms-login">
            <h2 class="forms_title">登录</h2>
            <el-form :model="form">
              <el-form-item label="">
                <el-input v-model="form.name" placeholder="用户名"></el-input>
              </el-form-item>
              <el-form-item label="">
                <el-input v-model="form.password" placeholder="密码"></el-input>
              </el-form-item>
            </el-form>
            <div class="forms_form">
              <div class="forms_buttons">
                <button type="button" class="forms_buttons-forgot">
                  忘记密码?
                </button>
                <input
                  type="submit"
                  value="登录"
                  class="forms_buttons-action"
                />
              </div>
            </div>
          </div>
          <div class="user_forms-signup">
            <h2 class="forms_title">注册</h2>
            <el-form :model="form">
              <el-form-item label="">
                <el-input v-model="form.name" placeholder="用户名"></el-input>
              </el-form-item>
              <el-form-item label="">
                <el-input v-model="form.password" placeholder="密码"></el-input>
              </el-form-item>
            </el-form>
            <div class="forms_buttons">
              <input type="submit" value="注册" class="forms_buttons-action" />
            </div>
          </div>
        </div>
      </div>
    </section>
  </div>
</template>

<script>
export default {
  name: "App",
  data() {
    return {
      form: {
        name: "",
      },
    };
  },
  mounted() {
    /**
     * Variables
     */
    const signupButton = document.getElementById("signup-button"),
      loginButton = document.getElementById("login-button"),
      userForms = document.getElementById("user_options-forms");

    /**
     * Add event listener to the "Sign Up" button
     */
    signupButton.addEventListener(
      "click",
      () => {
        userForms.classList.remove("bounceRight");
        userForms.classList.add("bounceLeft");
      },
      false
    );

    /**
     * Add event listener to the "Login" button
     */
    loginButton.addEventListener(
      "click",
      () => {
        userForms.classList.remove("bounceLeft");
        userForms.classList.add("bounceRight");
      },
      false
    );
  },
};
</script>

<style scoped>
::v-deep .el-input {
  padding: 0;
  width: 100%;
  border-bottom: 1px solid #ccc;
  font-family: "Montserrat", sans-serif;
  font-size: 1rem;
  font-weight: 300;
  color: gray;
  letter-spacing: 0.1rem;
  transition: border-color 0.2s ease-in-out;
}

::v-deep .el-input__inner {
  padding: 0;
  border: none;
}
.title {
  position: absolute;
  top: 50px;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  font-size: 70px;
}
/**
 * * General variables
 * */
/**
 * * General configs
 * */
* {
  box-sizing: border-box;
}

body {
  font-family: "Montserrat", sans-serif;
  font-size: 12px;
  line-height: 1em;
}

button {
  background-color: transparent;
  padding: 0;
  border: 0;
  outline: 0;
  cursor: pointer;
}

input {
  background-color: transparent;
  padding: 0;
  border: 0;
  outline: 0;
}
input[type="submit"] {
  cursor: pointer;
}
input::-moz-placeholder {
  font-size: 0.85rem;
  font-family: "Montserrat", sans-serif;
  font-weight: 300;
  letter-spacing: 0.1rem;
  color: #ccc;
}
input:-ms-input-placeholder {
  font-size: 0.85rem;
  font-family: "Montserrat", sans-serif;
  font-weight: 300;
  letter-spacing: 0.1rem;
  color: #ccc;
}
input::placeholder {
  font-size: 0.85rem;
  font-family: "Montserrat", sans-serif;
  font-weight: 300;
  letter-spacing: 0.1rem;
  color: #ccc;
}

/**
 * * Bounce to the left side
 * */
@-webkit-keyframes bounceLeft {
  0% {
    transform: translate3d(100%, -50%, 0);
  }
  50% {
    transform: translate3d(-30px, -50%, 0);
  }
  100% {
    transform: translate3d(0, -50%, 0);
  }
}
@keyframes bounceLeft {
  0% {
    transform: translate3d(100%, -50%, 0);
  }
  50% {
    transform: translate3d(-30px, -50%, 0);
  }
  100% {
    transform: translate3d(0, -50%, 0);
  }
}
/**
 * * Bounce to the left side
 * */
@-webkit-keyframes bounceRight {
  0% {
    transform: translate3d(0, -50%, 0);
  }
  50% {
    transform: translate3d(calc(100% + 30px), -50%, 0);
  }
  100% {
    transform: translate3d(100%, -50%, 0);
  }
}
@keyframes bounceRight {
  0% {
    transform: translate3d(0, -50%, 0);
  }
  50% {
    transform: translate3d(calc(100% + 30px), -50%, 0);
  }
  100% {
    transform: translate3d(100%, -50%, 0);
  }
}
/**
 * * Show Sign Up form
 * */
@-webkit-keyframes showSignUp {
  100% {
    opacity: 1;
    visibility: visible;
    transform: translate3d(0, 0, 0);
  }
}
@keyframes showSignUp {
  100% {
    opacity: 1;
    visibility: visible;
    transform: translate3d(0, 0, 0);
  }
}
/**
 * * Page background
 * */
.user {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100vh;
  background: #ccc;
  background-size: cover;
  background-image: url("../public/imgs/ltby.jpg");
}
.user_options-container {
  position: relative;
  top: 5%;
  width: 80%;
}
.user_options-text {
  display: flex;
  justify-content: space-between;
  width: 100%;
  background-color: rgba(34, 34, 34, 0.85);
  border-radius: 3px;
}

/**
 * * Registered and Unregistered user box and text
 * */
.user_options-registered,
.user_options-unregistered {
  width: 50%;
  padding: 75px 45px;
  color: #fff;
  font-weight: 300;
}

.user_registered-title,
.user_unregistered-title {
  margin-bottom: 15px;
  font-size: 1.66rem;
  line-height: 1em;
}

.user_unregistered-text,
.user_registered-text {
  font-size: 0.83rem;
  line-height: 1.4em;
}

.user_registered-login,
.user_unregistered-signup {
  margin-top: 30px;
  border: 1px solid #ccc;
  border-radius: 3px;
  padding: 10px 30px;
  color: #fff;
  text-transform: uppercase;
  line-height: 1em;
  letter-spacing: 0.2rem;
  transition: background-color 0.2s ease-in-out, color 0.2s ease-in-out;
}
.user_registered-login:hover,
.user_unregistered-signup:hover {
  color: rgba(34, 34, 34, 0.85);
  background-color: #ccc;
}

/**
 * * Login and signup forms
 * */
.user_options-forms {
  position: absolute;
  top: 50%;
  left: 30px;
  width: calc(50% - 30px);
  min-height: 420px;
  background-color: #fff;
  border-radius: 3px;
  box-shadow: 2px 0 15px rgba(0, 0, 0, 0.25);
  overflow: hidden;
  transform: translate3d(100%, -50%, 0);
  transition: transform 0.4s ease-in-out;
}
.user_options-forms .user_forms-login {
  transition: opacity 0.4s ease-in-out, visibility 0.4s ease-in-out;
}
.user_options-forms .forms_title {
  margin-bottom: 45px;
  font-size: 1.5rem;
  font-weight: 500;
  line-height: 1em;
  text-transform: uppercase;
  color: #e8716d;
  letter-spacing: 0.1rem;
}
.user_options-forms .forms_field:not(:last-of-type) {
  margin-bottom: 20px;
}
.user_options-forms .forms_field-input {
  width: 100%;
  border-bottom: 1px solid #ccc;
  padding: 6px 20px 6px 6px;
  font-family: "Montserrat", sans-serif;
  font-size: 1rem;
  font-weight: 300;
  color: gray;
  letter-spacing: 0.1rem;
  transition: border-color 0.2s ease-in-out;
}
.user_options-forms .forms_field-input:focus {
  border-color: gray;
}
.user_options-forms .forms_buttons {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 35px;
}
.user_options-forms .forms_buttons-forgot {
  font-family: "Montserrat", sans-serif;
  letter-spacing: 0.1rem;
  color: #ccc;
  text-decoration: underline;
  transition: color 0.2s ease-in-out;
}
.user_options-forms .forms_buttons-forgot:hover {
  color: #b3b3b3;
}
.user_options-forms .forms_buttons-action {
  background-color: #e8716d;
  border-radius: 3px;
  padding: 10px 35px;
  font-size: 1rem;
  font-family: "Montserrat", sans-serif;
  font-weight: 300;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.1rem;
  transition: background-color 0.2s ease-in-out;
}
.user_options-forms .forms_buttons-action:hover {
  background-color: #e14641;
}
.user_options-forms .user_forms-signup,
.user_options-forms .user_forms-login {
  position: absolute;
  top: 70px;
  left: 40px;
  width: calc(100% - 80px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease-in-out, visibility 0.4s ease-in-out,
    transform 0.5s ease-in-out;
}
.user_options-forms .user_forms-signup {
  transform: translate3d(120px, 0, 0);
}
.user_options-forms .user_forms-signup .forms_buttons {
  justify-content: flex-end;
}
.user_options-forms .user_forms-login {
  transform: translate3d(0, 0, 0);
  opacity: 1;
  visibility: visible;
}

/**
 * * Triggers
 * */
.user_options-forms.bounceLeft {
  -webkit-animation: bounceLeft 1s forwards;
  animation: bounceLeft 1s forwards;
}
.user_options-forms.bounceLeft .user_forms-signup {
  -webkit-animation: showSignUp 1s forwards;
  animation: showSignUp 1s forwards;
}
.user_options-forms.bounceLeft .user_forms-login {
  opacity: 0;
  visibility: hidden;
  transform: translate3d(-120px, 0, 0);
}
.user_options-forms.bounceRight {
  -webkit-animation: bounceRight 1s forwards;
  animation: bounceRight 1s forwards;
}

/**
 * * Responsive 990px
 * */
@media screen and (max-width: 990px) {
  .user_options-forms {
    min-height: 350px;
  }
  .user_options-forms .forms_buttons {
    flex-direction: column;
  }
  .user_options-forms .user_forms-login .forms_buttons-action {
    margin-top: 30px;
  }
  .user_options-forms .user_forms-signup,
  .user_options-forms .user_forms-login {
    top: 40px;
  }

  .user_options-registered,
  .user_options-unregistered {
    padding: 50px 45px;
  }
}
</style>
